X1245¶
ISOGONAL CONJUGATE OF X1010
X1245 (ISOGONAL CONJUGATE OF X1010) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1245 = ISOGONAL CONJUGATE OF X_1010."""
from __future__ import annotations
from pathlib import Path
import sympy.geometry as spg
from geometor.model import Model
from geometor.etc.ops import (
central_line,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
incenter_of,
isogonal_conjugate,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01245(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1245 = ISOGONAL CONJUGATE OF X_1010 on reference triangle ABC."""
X_1010 = eval_trilinear_point(model, A, B, C, '(b*c*(a**(2) + (b + c)**(2))/(b + c))', ID="X_1010", classes=["center"])
X_1245 = isogonal_conjugate(model, A, B, C, X_1010, ID="X_1245", classes=["selected", "target"])
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
central_line(model, X_3, X_31, 3, 31, incident=True)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
central_line(model, X_1, X_69, 1, 69, incident=True)
X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
X_72 = eval_trilinear_point(model, A, B, C, '(b + c)*cot(A)', ID="X_72", classes=["center", "incident"])
central_line(model, X_42, X_72, 42, 72, incident=True)
return promote_point_to_top(model, X_1245)
def build_model(
sides: tuple[float, float, float] = (5.0, 6.0, 7.0),
show_guides: bool = False,
) -> Model:
"""Build a `geometor.model.Model` for X_1245 on the given reference triangle."""
model = create_model('X_1245 = ISOGONAL CONJUGATE OF X_1010')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01245(model, A, B, C)
return model
if __name__ == "__main__":
here = Path(__file__).resolve().parent
model_acute = build_model((5.0, 6.0, 7.0))
model_acute.save(str(here / "x-01245.json"))
write_center_svg(
model_acute,
here / "x-01245.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)